Não informado. (1948). Educational Review. University of Birminghan, Institute of Education.
Chicago-referens (17:e uppl.)Não informado. Educational Review. Edinburgh, Inglaterra: University of Birminghan, Institute of Education, 1948.
MLA-referens (8:e uppl.)Não informado. Educational Review. University of Birminghan, Institute of Education, 1948.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.